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Julian Weather in December

Julian in December sees low daytime temperatures of 12°C (54°F) and nighttime lows of 3°C (37°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.

Rainfall in Julian in December

This month sees the most rain, so carrying an umbrella will ensure you stay dry. Looking at the last 30 years, the data shows about 10 days with rain, averaging 132 mm (5.2 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Julian in December

In December, Julian sees low temperatures, with highs of 12°C (54°F). Nights drop to around 3°C (37°F). December marks the winter season. The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop to 3°C (37°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. Experience the year's most moderate temperatures in December.

Sunshine in Julian in December

Enjoy a sunny month with about 231 hours of sunshine, making it one of the brighter months of the year despite the cool conditions.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, September and October typically offer the best weather for Julian.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Julian's climate page.

Julian Temperature in December

Min TemperatureMin Temperature 3°C (37°F)  
Max TemperatureMax Temperature 12°C (54°F)  
Chance of RainChance of Rain 33%  
PrecipitationPrecipitation 132 mm (5.2 in)  
Rainy daysRainy days 10 days  
HumidityHumidity 64% *  
SunshineSunshine 231 hours *  
Percentage SunshinePercentage Sunshine 74% *  
* Data from: San Diego, the United States of America (66 KM, 41 Miles).

Best Places in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in December →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Julian in December

The weather can swing between comfortable and chilly in December, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Julian in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
4/10
Cycling
5/10
Walking
5/10
Camping
3/10
Outdoor sports
5/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Julian's climate page.

More climate data for Julian